Inventor

Johan W. Scheeren

Inventor

Malden, NL

Overview

11→

Patents

1992–2002

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Pprimary

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations30%

C07DHeterocyclic compounds19%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium19%

C07HSugars15%

A61KPreparations for medical, dental or toiletry purposes7%

B82YSpecific uses or applications of nanostructures4%

C07CAcyclic or carbocyclic compounds4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

6,344,571'Water soluble analogs and prodrugs of paclitaxel'2002 5,874,595'Method for the preparation of baccatin III and derivatives thereof from 10-deacetylbaccatin III'1999 5,874,550'Process for preparing epirubicin or acid addition salts thereof from daunorubicin'1999 5,760,072'Paclitaxel prodrugs, method for preparation as well as their use in selective chemotherapy'1998 5,710,135'Anthracycline prodrugs, method for preparation as well as their use in selective chemotherapy'1998 5,348,949'Method of preparing N-oxo-tetrahydro-.beta.-carbolines'1994 5,294,701'Anthracycline compounds and intermediates'1994 5,183,913'Cyclic triketone compounds and trimethylsilyoxy butadiene compounds and their use in the preparation of daunomycinone derivatives'1993 5,106,840'Method of preparing n-oxo-tetrahydro-beta-carbolines'1992 5,097,051'Cyclic triketone compounds and trimethylsilyloxy butadiene compounds and their use in the preparation of daunomycinone derivatives'1992 5,079,349'Trimethylsilyl acetylene compounds, their preparation and their use in the preparation of daunomycinone derivatives'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2002Patents assigned to PHARMACHEMIE BV (9)· patent assignee history

1992–1994Patents assigned to DUPHAR INT RES (2)· patent assignee history

1992–2002Based in Malden, NL· patent location history

1992–1994Based in Weesp, NL· patent location history

1998Based in Nijmegen, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PHARMACHEMIE BV	9	1992–2002
DUPHAR INT RES	2	1992–1994

Locations

Location	Patents	Span
Malden, NL	8	1992–2002
Weesp, NL	2	1992–1994
Nijmegen, NL	1	1998